SON(rcHEMICAI, SYNIIIISIS AIID CIIARACTERIZATION OF PR.ECT ...

ldtudrctiq UAACVD Techniaue,
In the pr$e sndy we d€al with "a.{c" sd 'td" s t- l€to+nolar, a bi{enrar.
lighdr, !o the chmisty of s@h ligdds will b€ discusd in d.6il her.
A m.Ll 6tioo replaces rhe enolic hydrcg.n of ligdd 6d a six-memberd chelaied ri.g
is prcdued. B-rlik€rorar6 eior RrCOc (R) = C G1 o mly n$ction s a lised in
srcEt w's. Wlln. a.ti4 a uidcnlaG tigord. n M fom siDple salb with highly
cl6loposiriE ncials es. If o c(cHt{BcocHr, but ir is very @ rbd 0diLroEls
ooi.ty is ljrk d ro @td oGGl aroh rhrcu8h on c.rbonyl Srcup o.ly. Sili@n alon hs
ben &pictcd 6 r.t?hedDl with 9iit lotu doi.tt bchwing s uidat c liged.
Usud no& of p{ik tone bonding is ro acl6. bidc ai.lisdd. Meral €to. Gpl&6
th. .nolic hydrc8d of d€ ligand add foms ! sir ncnbd ch€lde ring. Deld.lisglion of
th. .l€tlon cloud in ch€lar€ rile hs b.en 3ulis€sted or rhe basis of smc
physioch.hicd cheelaistic to €ndow it wilh . @nain noul ofdonaric chd@ler.
.[\
R\ \,c-o.
*/
\.t C-O
Si!c. th. €nol.t ior @ies a singl. @gativ. chsge, neral alon 6 rc&t wnh on or
mor cnobte ions to gie eiihd n€ut.l moleulca or chdg€d nol@ules, depending upon
utc @o'di@lioD nMbq (tu) &d v.lcncy (n) of cenbal neial alom. This typ€ of bondins
givca ris b thG difl@nt tlT.s ofdqivaiivB.
{t)
(2)
(3)
(l) rvl.r d < 2! :
A.oDplq ior Day &sult if @odi8tion nMbd of mebl ioD t Ls &a double rh.
plimdy val6cy. Comon exmpl.s e si(&aclcl:, Ni(gmlL, Br: and Sn(&e): M.:
25
M